Finding the Third Proportional to 1,067,145 and 1,640,081

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067,145 : 1,640,081 = 1,640,081 : x
2. Step 2: Convert to fraction form
   1,067,145/1,640,081 = 1,640,081/x
3. Step 3: Cross multiply
   1,067,145x = 1,640,081 × 1,640,081
4. Step 4: Simplify right side
   1,067,145x = 2,689,865,686,561
5. Step 5: Solve for x
   x = 2,689,865,686,561/1,067,145
6. Step 6: Final answer
   x = 2,520,618.74